Int J Mol Sci
Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy.
Published: December 2022
Cardiac development is characterized by the active proliferation of different cardiac cell types, in particular cardiomyocytes and endothelial cells, that eventually build the beating heart. In mammals, these cells lose their regenerative potential early after birth, representing a major obstacle to our current capacity to restore the myocardial structure and function after an injury. Increasing evidence indicates that the cardiac extracellular matrix (ECM) actively regulates and orchestrates the proliferation, differentiation, and migration of cardiac cells within the heart, and that any change in either the composition of the ECM or its mechanical properties ultimately affect the behavior of these cells throughout one's life. Thus, understanding the role of ECMs' proteins and related signaling pathways on cardiac cell proliferation is essential to develop effective strategies fostering the regeneration of a damaged heart. This review provides an overview of the components of the ECM and its mechanical properties, whose function in cardiac regeneration has been elucidated, with a major focus on the strengths and weaknesses of the experimental models so far exploited to demonstrate the actual pro-regenerative capacity of the components of the ECM and to translate this knowledge into new therapies.
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http://dx.doi.org/10.3390/ijms232415783 | DOI Listing |
Nat Cardiovasc Res
January 2025
Department of Pharmacy at the Second Affiliated Hospital, and Department of Pharmacology at College of Pharmacy (The Key Laboratory of Cardiovascular Research, Ministry of Education; National Key Laboratory of Frigid Zone Cardiovascular Diseases), Harbin Medical University, Harbin, China.
Targeting the cardiomyocyte cell cycle is a promising strategy for heart repair following injury. Here, we identify a cardiac-regeneration-associated PIWI-interacting RNA (CRAPIR) as a regulator of cardiomyocyte proliferation. Genetic ablation or antagomir-mediated knockdown of CRAPIR in mice impairs cardiomyocyte proliferation and reduces heart regenerative potential.
View Article and Find Full Text PDFNat Cardiovasc Res
January 2025
School of Cardiovascular and Metabolic Medicine & Sciences, British Heart Foundation Centre of Research Excellence, James Black Centre, King's College London, London, UK.
Arch Dis Child
January 2025
Department of Child Life and Health, University of Edinburgh Institute for Regeneration and Repair, Edinburgh, UK.
Objective: To obtain priority consensus for outcome measures of oral corticosteroid treatment of preschool wheeze that represent stakeholder groups.
Design: (1) A systematic review to identify a set of outcome measures; (2) an international survey for healthcare professionals (HCPs) and a nominal group meeting with parents; (3) a final consensus nominal group meeting with key HCPs (trial investigators and paediatric emergency medicine clinicians) and the same parent group.
Main Outcome Measures: Consensus priority of treatment outcome measures, outcome minimal clinically important differences (MCIDs) and level of concerns about adverse effects.
Int J Biol Macromol
January 2025
Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Dokki, Giza 12622, Egypt.
Integrating nanotechnology with tissue engineering has revolutionized biomedical sciences, enabling the development of advanced therapeutic strategies. Tissue engineering applications widely utilize alginate due to its biocompatibility, mild gelation conditions, and ease of modification. Combining different nanomaterials with alginate matrices enhances the resulting nanocomposites' physicochemical properties, such as mechanical, electrical, and biological properties, as well as their surface area-to-volume ratio, offering significant potential for tissue engineering applications.
View Article and Find Full Text PDFThe intricate development and functionality of the mammalian heart are influenced by the heterogeneous nature of cardiomyocytes (CMs). In this study, single-cell and spatial transcriptomics were utilized to analyze cells from neonatal mouse hearts, resulting in a comprehensive atlas delineating the transcriptional profiles of distinct CM subsets. A continuum of maturation states was elucidated, emphasizing a progressive developmental trajectory rather than discrete stages.
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